A5034906033- Plant Pathogens and Fungal Diseases
- Mycorrhizal Fungi and Plant Interactions
- Forest Insect Ecology and Management
- Yeasts and Rust Fungi Studies
- Horticultural and Viticultural Research
- Powdery Mildew Fungal Diseases
- Plant Pathogenic Bacteria Studies
- Plant Pathogens and Resistance
- Fungal Plant Pathogen Control
- Plant-Microbe Interactions and Immunity
- Seedling growth and survival studies
- Leaf Properties and Growth Measurement
- Mycotoxins in Agriculture and Food
- Optical Polarization and Ellipsometry
- Fungal Biology and Applications
- Essential Oils and Antimicrobial Activity
- Entomopathogenic Microorganisms in Pest Control
- Plant Parasitism and Resistance
- Plant Disease Resistance and Genetics
- Spectroscopy and Chemometric Analyses
- Plant Ecology and Soil Science
- Plant Surface Properties and Treatments
- Polysaccharides Composition and Applications
- Plant pathogens and resistance mechanisms
- Plant Gene Expression Analysis
Institute of Agrifood Research and Technology
2013-2023
Institut Français de la Vigne et du Vin
2018
Centro de Investigación y Tecnología Agroalimentaria de Aragón
2005
University of Nariño
1997
Universitat Autònoma de Barcelona
1989
Botr yosphaeria stevensii frequently has been associated with dieback and canker diseases of oak, mainly in the western Mediterranean area but more rarely other regions. The species concept B. unclear, it is possible that some collections were identified incorrectly. A collection fungal strains isolated from diseased oak trees initially as was characterized on basis morphology ITS nucleotide sequences. Morphology compared type specimens Physalospora mutila (= stevensii) its anamorph,...
Botryosphaeria sarmentorum sp. nov. and B. iberica are described illustrated. These two species unusual in this genus because of their brown, 1-septate ascospores. Phylogenetic analysis based on ITS EF1-α sequences place them within the clade containing with Fusicoccum anamorphs. The conidia, however, do not conform to Fusicoccum. Therefore phylogenetically morphologically anamorphs these belong a distinct from any currently accepted anamorph genera assigned Botryosphaeria. Through study...
Species of Diaporthe are considered important plant pathogens, saprobes, and endophytes on a wide range hosts. Several species well-known grapevines, either as agents pre- or post-harvest infections, including Phomopsis cane leaf spot, bleaching, swelling arm trunk cankers. In this study we explore the occurrence, diversity pathogenicity spp. associated with Vitis vinifera in major grape production areas Europe Israel, focusing nurseries vineyards. Surveys were conducted Croatia, Czech...
Botr yosphaeria stevensii frequently has been associated with dieback and canker diseases of oak, mainly in the western Mediterranean area but more rarely other regions. The species concept B. unclear, it is possible that some collections were identified incorrectly. A collection fungal strains isolated from diseased oak trees initially as was characterized on basis morphology ITS nucleotide sequences. Morphology compared type specimens Physalospora mutila (= stevensii) its anamorph,...
Botryosphaeria sarmentorum sp. nov. and B. iberica are described illustrated. These two species unusual in this genus because of their brown, 1-septate ascospores. Phylogenetic analysis based on ITS EF1-α sequences place them within the clade containing with Fusicoccum anamorphs. The conidia, however, do not conform to Fusicoccum. Therefore phylogenetically morphologically anamorphs these belong a distinct from any currently accepted anamorph genera assigned Botryosphaeria. Through study...
Background and Aims Information on the natural infection rates of pruned canes caused by fungal trunk pathogens is scarce. This study aimed to determine pathogenic mycoflora infecting pruning wounds in two vineyards Catalonia, Spain, each with a different level diseases, seasons. Methods Results Vines were vineyard mid-autumn leaving four six buds. Three months later, isolated identified 250 chosen at random vineyard. then definitively buds, sampling for pathogen isolation identification was...
Botryosphaeria viticola sp. nov., isolated from pruned canes of Vitis vinifera in NE Spain, is described and illustrated. Phylogenetic analysis based on ITS EF1-α sequences morphological characters both anamorph teleomorph confirmed this taxon to be included within the group species with Dothiorella anamorphs. It related most closely B. sarmentorum iberica which it differs DNA sequences.
Two hundred and twenty-five Diaporthe isolates were collected from 2005 to 2019 in almond orchards showing twig cankers shoot blight symptoms five different regions across Spain. Multilocus DNA sequence analysis with loci (ITS, tub, tef-1α, cal his), allowed the identification of four known species, namely: D. amygdali, eres, foeniculina phaseolorum. Moreover, a novel phylogenetic mediterranea, was described. amygdali most prevalent due largest number (85.3%) obtained all sampled regions....
Summary Thirty‐four fungal species isolated from cork oak ( Quercus suber ) in Catalonia (NE Spain) during 1992–95 were tested for pathogenicity either stem, leaf or root inoculations. Eleven found to be pathogenic on stem: Biscogniauxia mediterranea , Botryosphaeria stevensii Diatrype cf. stigma Endothia gyrosa Fusarium solani Graphium sp., Ophiostoma quercus Phomopsis Phytophthora cinnamomi Sporendocladia bactrospora and an unidentified Coelomycete. Three fungi showed effects leaves:...
Abstract Botryosphaeria stevensii Shoemaker (anamorph: Diplodia mutila Fr. apud Mont.) is reported as the cause of canker and dieback cork oak ( Quercus suber L.) in Catalonia (NE Spain). It also causes wilting trees after removed for industrial purposes. Symptomatology details morphology both anamorph teleomorph are given.
Lipophilic phytotoxins produced by Neofusicoccum parvum , a Botryosphaeriaceae species pathogenic to grapevine, were isolated and identified spectroscopic methods as (3 R ,4 )-(-)-4-hydroxymellein, S isosclerone tyrosol. When assayed for phytotoxicity on tomato plants, all four metabolites showed phytotoxic activity, with )-(-)-4-hydroxymellein the most active. Isosclerone is reported first time
Diplodia seriata and Phaeomoniella chlamydospora are two fungal pathogens associated with grapevine trunk diseases worldwide. This study aimed to evaluate the period during which pruning wounds remain susceptible infection describe colonization of canes artificially inoculated these pathogens. In first experiment, made in either fall or winter were separately each pathogen at different times after pruning. Wound susceptibility both decreased as between inoculation increased, from high...
Some physiological and growth parameters were studied in cork oak plants inoculated with three pathogenic fungi (Botryosphaeria stevensii, Hypoxylon mediterraneum Phytophthora cinnamomi) order to understand the effects of fungal infection.All induced reduction daily stem growth, stomatal conductance, air-leaf temperature photochemical efficiency.The more aggressive pathogens, B. stevensii P. cinnamomi, sharpest decline all parameters.A sudden variables was caused by within 6 days after...
Grapevine decline symptoms in California include dead spurs and cordon trunk dieback due to canker formation the vascular tissue. Seven Botryosphaeria spp. are known be associated with grapevine cankers California, viz. australis, B. dothidea, lutea, obtusa, parva, rhodina, stevensii (3). Recently, iberica viticola also were isolated from a field survey that was conducted throughout California. Identification based on morphological comparisons along DNA analyses previously identified...
Summary Botryosphaeria canker of cork oak ( Quercus suber L.), caused by corticola , is a well‐known factor contributing to the decline this forest species and serious disease in main cork‐producing countries Western Mediterranean basin. In work, fungicides with potential for controlling were selected using combination vitro tests field trials. Fourteen different chemical families tested evaluate their effect on inhibition mycelial growth. The most effective benomyl, carbendazim, cyprodinil...
Variation of Diplodia seriata , a fungal species associated with botryosphaeria dieback grapevine, was investigated respect to its genetic, phenotypic and pathogenic characteristics. The inter‐simple sequence repeat ( ISSR ) technique used investigate the genetic diversity 83 isolates D. . Five primers were able provide reproducible polymorphic DNA fingerprint patterns, thus showing relevant variability in species. Analyses data by different clustering methods grouped into two distinct...
Grapevine Trunk Diseases (GTDs), particularly esca, are major concerns in Spain. This study characterized the fungal and bacterial communities a 30-year-old ‘Cabernet Sauvignon’ vineyard Catalonia, Six symptomatic vines expressing esca-foliar symptoms six additional asymptomatic plants were surveyed. Non-necrotic necrotic tissues sampled from rootstocks, trunks cordons of selected vines. Fungal isolations molecular techniques used combination to investigate endophytic microflora characterize...
The mycorrhizal field inoculation of 161-49 Couderc (<i>Vitis riparia</i> Michx. x <i>Vitis berlandieri</i> Planch.) and 140 Ruggeri rupestris</i> L. <i>V. berlandieri</i>) grapevine rootstock plants grafted with Cabernet Sauvignon was evaluated in two replant soils a Mediterranean production area northeastern Spain. first soil (vineyard 1) had been under tillage for 10 years. second 2) cultivated one year before setting up the new plantation infested by white root rot fungus <i>Armillaria...
Powdery mildew is one of the major diseases peach (Prunus persica), caused by ascomycete Podosphaera pannosa. Currently, it controlled through calendar-based fungicide treatments starting at petal fall, but an alternative to develop resistant varieties. Previous studies mapped a resistance gene (Vr3) in interspecific populations between almond ('Texas') and ('Earlygold'). To obtain molecular markers highly linked Vr3 reduce number candidate genes, we fine-mapped genomic region 270 kb with 27...